Gonic

### Features

* **gonic:** resolve artist info from musicbrainz without a lastfm key ([ff022c1](https://www.github.com/sentriz/gonic/commit/ff022c178d63fca0bb8445919e6ed407f53bd357))
* **gonic:** store and deduplicate artists by musicbrainz id ([ae546e6](https://www.github.com/sentriz/gonic/commit/ae546e65e401fcf905b4cfa7ddb807a2e1fd5062))


### Bug Fixes

* **lastfm:** ignore placeholder image when stealing artist image ([e800661](https://www.github.com/sentriz/gonic/commit/e800661e7297d0c14b0c51d0858732f9ba8d2cba))
* **subsonic:** only consult format prefs when client requests a format ([1dd97a5](https://www.github.com/sentriz/gonic/commit/1dd97a532e1f75239188d9fe1ebeb239fddfca45))
* **subsonic:** restrict startScan to admin users ([2376c61](https://www.github.com/sentriz/gonic/commit/2376c61bf73642f39e9ee45e735423d8df82b132))